Companies can finance their operations through either debt or equity. The debt-to-capital ratio gives users an idea of a company's financial structure, or how it is financing its operations, along with some insight into its financial strength. The higher the debt-to-capital ratio, the more debt the company has compared to its equity. This tells investors whether a company is more prone to using debt financing or equity financing. A company with high debt-to-capital ratios, compared to a general or industry average, may show weak financial strength because the cost of these debts may weigh on the company and increase its default risk.